aephialum, I am sorry to hear that your husband doesn't like your sorority. That must be very tough for you.
Here is something "sneaky" you could try...
Invite over your sorority sisters and get them to bring their husbands or boyfriends. That way, while the women bond, the men can bond too, amd maybe your husband will make friends with the men there. You never know, it might work.
And if it does work, your husband will be wanting your sorority sisters and their significant others to come over more often!
Don't let on to what you're up to (and don't divulge your ulteriour motives to your sorority sisters either, as they will likely tell what you're "up to" to their husbands who will blab to your husband upon meeting him). You just want this to seem so natural, like you never intended for him to become buddsy buddsy with the other men... hee hee!
And then the men can start some sort of an "auxilliary group".
AOII has the IIOA's for me, and I have heard of Alpha Phi's refering to the men in their lives as "Alpha He's". Cute huh?
Let us know if this works!